Radiator.



w. WILKINSON.

RADIATOR. A1PLIOATION FILED JAN. 30, 1909.

948,083. Patented Feb. 1,1910.

w/ TA/E'S szs UNITED STATES PATENT OFFICE.

WILLIAM wrnxmso'iv, or SALTLEY, BIRMINGHAM, ENGLAND.

RADIATOR.

To all whom it may concern:

Bait known that I, WILLIAM WILKINSON, subject of Great Britain, residing at Adderley Road Rollin Mills Adderley Road, Saltley, Birming am, England, have invented new and useful Improvements Relating to Radiators for Use on Motor Road Vehicles and Like Purposes, of which the following is a specification.

This invention relates'to radiators tor cooiing the circulating water employed with motorcars to reducethe temperature of the cylinders, and for equivalent services, my 0 ject being to construct improved radiators of the type in which fiat tubular elements with corrugated or like surfaces 'are employed.

Referring to the accompanying sheet of explanatory drawings :.F1gur e 1 illustrates in front e-evation a portion of a radiator produced from tubes or elements made in accordance with this invention. Fig. 2 is a side elevation, Fig. 3 a longitudinal section on A. B. Fig. 2, and Fi 4 a transverse section on C. D. Fig. 2, o a portion of one of my tubes.

The same reference letters in the different views indicate the same parts.

In the application of the invention as illushated to the construction of a radiator for motor car service, I form each tubular element or water conduit from a rectangular strip of brass or other metal, of a length suitable for fitting between theordinary upper and lower chambers or like portions of the radiator.

In Fig. 1 a and b respectively denote the plates of the upper and lower chambers to which the tubes or tubular elements are attached.

In any convenient and known manner and by means of ordinary press or other tools, hollow projections c of a teat like form are pressed out from the metal sheet to serve as lateral extensions. .At its ends the plate is suitably shaped to provide tubular openings (2 and between the teats a short communicating channels 6 are formed.

Specification of Letters Patent. Application filed January 80, 1909. Serial No. 475,202.

' Patented Feb. 1, into.

.. as aforesaid is folded or oubled about its longitudinal center, and its edges are thus brought together. The edges are folded over as indicated at Fig. i and soldered or a thin distance piece may be inserted between them, or other convenient means ado ted for preventing actual contact of the to ded ive external ducts or channels are formed for the passage of air currents.

Having thusdescribed m y lnvention what ters Patent is A tubular element for use in the radiators of motor road vehicles and like purposes, comprising a metal sheet formed with a single fold and having its edges opposite the fold secured together, hollow teat like projections arranged in horizontaland vertical rows and ressed up from one side of the sheet and situated 0 posite each other on the outer sides of the e ement, channels connectin "the projections in the vertical rows, andtu ular openings at theends of the element communicatin with the projections, substantially ,as set orth.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

WILLIAM WILKINSON.

Witnesses JOHN MORGAN,

HARRY DAVID.

otherwise secured, but before such operation,

lar projections ofthe adjacent tubes, effect The strip of metal havin the projections portions other than along the edges as afore- I said. With the provision of the tubular I claim as new and desire to secure by Let- 

